Moodus is a village in the town of East Haddam, Connecticut, United States. The village is the basis of a census-designated place (CDP) of the same name. The population of the CDP was 1,982 as of the census of 2020.
Prior to its purchase by English settlers in 1662, the area around Moodus was inhabited by Native American Algonquians. The names of three of the inhabiting tribes are known. The Wangunks, the Mohegans and the Nehantics were their names. The name was derived from the Native American name for the area. The names was "Matchetmadosett" or "Matchitmoodus". It can be translated to the place of noises. Its name possibly because of the frequent earthquakes in the area. Numerous earthquakes were recorded in the area between 1638 and 1899. Loud rumblings, possibly the "Moodus Noises", could be heard for miles surrounding the epicenter of the quakes near Mt. Tom. The land, which is now the towns of Haddam and East Haddam, was purchased by se